Luckily, the Spirit Vein in the Mysterious Thousand Secret Realm had grown to the Superior Eight Stages, and there were plenty of Spiritual Vein Flowers, so this Cave Mansion was not short of Qi of Heaven and Earth at all.
Regardless of how Zhou Sui devoured the energy, it was completely fine; it was but a drop in the ocean.
"Very good, very good."
Suddenly, Zhou Sui opened his eyes, revealing a startling glimmer. He felt a significant improvement in the Unity mana within him. After several months of cultivation, he had digested a lot of True Phoenix Qi and Pure Yin Qi that he received from Daoist Fengxi, which astonishingly enhanced his Unity mana.
This was equivalent to saving a thousand years of bitter cultivation, and could be described as a rapid advancement.
Faintly, within the depths of his body, countless Ten Thousand Poison Runes flickered as if many runes were flowing through him.
